IoT / Client / get_cardinality

get_cardinality#

IoT.Client.get_cardinality(**kwargs)#

Returns the approximate count of unique values that match the query.

Requires permission to access the GetCardinality action.

See also: AWS API Documentation

Request Syntax

response = client.get_cardinality(
    indexName='string',
    queryString='string',
    aggregationField='string',
    queryVersion='string'
)
Parameters:

  • indexName (string) – The name of the index to search.

  • queryString (string) –

    [REQUIRED]

    The search query string.

  • aggregationField (string) – The field to aggregate.

  • queryVersion (string) – The query version.

Return type:

dict

Returns:

Response Syntax

{
    'cardinality': 123
}

Response Structure

  • (dict) –

    • cardinality (integer) –

      The approximate count of unique values that match the query.

Exceptions

  • IoT.Client.exceptions.InvalidRequestException

  • IoT.Client.exceptions.ThrottlingException

  • IoT.Client.exceptions.UnauthorizedException

  • IoT.Client.exceptions.ServiceUnavailableException

  • IoT.Client.exceptions.InternalFailureException

  • IoT.Client.exceptions.ResourceNotFoundException

  • IoT.Client.exceptions.InvalidQueryException

  • IoT.Client.exceptions.InvalidAggregationException

  • IoT.Client.exceptions.IndexNotReadyException